Quoin



June 14, 1927.

H. H. STRAIT QUOIN Filed Jan. 4, 1925 Hal? //1 VEN To@ Era-:.17

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Patented June 14, 1927.

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rIFItJSIElA H. STRAT, OF OVEIlElLltliIl'ID,` MSSUURI.

QUOIN.

.application sied January 4, ieee. semi no. 610,547.

This invention relates to quoins of Vthe type used in locking up printing forms, and the principal object is to produce a simple quoin which may be used in restricted spaces.

Prior to this invention the quoins used in ocking up printing forms were quite large ind cumbersome, the most common form being composed of a pair of wedge-shaped members which cooperated with each other in such manner as to exert an outward pressure against the adjacent furniture within the chase. The quoins briefly described above functioned perfectly when the matter within the chase was so arranged that suincient room was provided for the receptionv of said quoins, but this is not always so, as, for instance, where the locked matter includes a number of adjacent cuts which are separated by a very narrow space and which must be made movable for the purpose of registering7 or where type matter is locked within a mortisel and it is desired to locate the printed matter very close to the border. In these cases it was customary heretofore to lock the matter composing the form by vedging leads, or slugs, into these narrow paces, but this method is a very unsatisfactory one as it is impossible to get the matter tiO'ht and work ups almost invariablyy resiilt.

The quoin disclosed in the present application is intended tol eliminate the annoyance occasioned by the failure ofl the unsatisfac tory method described above, said quoin being so constructed as to be capable of being introduced into a very narrow space, a portion of said quoin being inserted into a recess formed in the adjacent matter, and when expanded said quoin will exert sulficient pressure against the matter within the chase to lock same securely therein.

A further advantage found in the use of the quoin disclosed herein results from the fact that a part of said quoin is reversible so that said quoin may be used where there is sufficient space, without necessitating the forming of recesses in the adjacent matter within the chase.

W'ith the foregoing and other objects in view, the invention comprises the novel construction, combination and arrangement of parts hereinafter more specifically described and illustrated in the accompanying drawings, wherein is shown the preferred embodiment of the invention. However, it is to be understood that the invention comprehends changes, variations and modifications which come within the scope of the claim hereunto appended.

Fig. l is a plan view of a chase showing a plurality of cuts locked therein by my improved quoins, one of said'cuts being broken away to show the manner of inserting the quoins therein.

Fig. II is an enlargedrfront elevation of my improved quoin. c i Y F ig. lll isan lenlarged vertical section through the qucin shown in Fig. 1I.

Fig. lV is an enlarged vertical `section similar to F ig. Hl but showing a part of the quoin reversed so that said quoin may be used where space. will permit without necessitating theboring of holes in cuts or other matterwithin the chase.

Fig V is a View showing the manner of using my quoin'to loch type matter within a mortise. Y r

Fig. Vl is a view showing the tool used in expanding or contracting my quoin.

ln the drawing, A designates a chase which may be of the type usually employed by printers. 'llo illustrate theuse of my improvedgquoin, l have located a plurality of cuts B within the chase A, and to partiallyfill the space between the cuts B and the ends of the chase A l employ the usual strips of furniture C.

Q; designates my improved quoins, each of which comprises a non-rotatable member'l and a rotatable member 2. Themember l comprises a plate portion 3 and an integral portion et extending outwardly from said plate portion 3. The portion fl is provided with acentral internally threaded aperture 5 for al purpose to be hereinafter described. lhe member 2 comprises a disk portion 6 provided with notches 6 and a centrally located shanl: 7' preferably formed integral with said dislr portion 6. Formed on the plate portion 3 of the member l adjacent to the upper edge thereof is a pair of integral prongs 8, said prongs being extended from said plate portion 3 in the same direction that the portion l extends yfrom said plate portion, and'formed on said plate portionS adjacent to the lower edge thereof isa similar pair of prongs 9 which entend from thek side of the plate portion 3 opposite to the side from which the prongs 8 ext-end. In use the threaded shank 7 ofthe memberV 2 extends into and engages the threads in the aperture 5 in the portion 4f of the member l' as shownin Figs.` III Vand IV of the drawings, and it is apparent that th-e distance v between the plate portion Soi the member l and the disk portion t'ot the member 2 may be increased or diminished by rotating the "Il of the stationary members l of the quoins.

I disk portieri 6 of the member 2is`incr-eased rIhe portions 4 are inserted into the recesses I3` and the', prongs 8 are driven into the wood adjacent to said recesses whereby said members 2 are prevented from turning. Vhen the parts are in the positions shown and described, the disk portion 6 of each oit the members 2 bears against an adjacent cut B and two cuts separated by any one o1 the quoins may be'moved away from each other by rotating the member 2 in a direction to cause the threaded shanks 7 to move outwardly in the threaded aperture 5.

The quoins QJv 'n Fig. parts in the positions illustrated in Fig. IV. lVhen arranged in the manner illustrated the prongs), of the member l are driven into Y the wood backing oi' a cut or into a piece ot furniture whereby said member l is held immovable, and as the distance between thel plate' portion 3 of. the member l and the by the interposition'ofthe portion 4 therebetween the quoinsl` may be used in much wider spaces kthan would be possible with the quoinparts used as shown in Fig. III, and also said quoins may be used `as illus- I are used with the trated in Fig. IV without the necessity of forming recesses in the cuts or other matter within the chase, the prongs 9 holding the member l in a fixed position preparatory to the locking oit the matter within said chase or while said matter is being adjusted.

Y. To provide a means for conveniently ro tating the disk portion 6 of the member 2, I provide a tool 10 which is provided with a projection l1 adapted lto be inserted into the notches 6 in said disk portion and -an arcuate tace l2 whichcontacts with the pe-v riphery of said disk portion.

Fig. V shows two ways in which my iin-` proved yquoins may be used to lock matter within a inortise.

'The use of the quoin disclosed in the present application provides means whereby cuts or other matter within a chase may be,V

moved in any direction when arranged as shown in Fig. I. This is an important eai ture in connection with multicolor jobs where it is necessary to locate parts of one cut in registration with parts ot' other cuts. It is apparent from Fig. I that any cut may be moved by screwing yor unscrewing thek various quoins without loosening the form.

I claim: A quoin consisting of two parts comprising a plate provided with an integrally 'formed internally threaded hub portion pro-V Hosen H. srnair. 

